Logo of OnTime Insulation Services Inc.

OnTime Insulation Services Inc.

  • 48 Morton St, Holliston, MA 01746
  • Commercial Roofing
  • Industrial Roofing
  • Residential Roofing
  • Free Estimates
  • Licensed & Insured
Hours
Mon7:30 AM - 9:00 PM
Tue7:30 AM - 9:00 PM
Wed7:30 AM - 9:00 PM
Thu7:30 AM - 9:00 PM
Fri7:30 AM - 9:00 PM
Sat7:30 AM - 9:00 PM
Sun7:30 AM - 9:00 PM

About the Business

At OnTime Insulation Services Inc., we pride ourselves on our versatility and technical expertise, effectively managing both residential and commercial projects. Based in Holliston, Massachusetts, we offer a comprehensive range of services, including roof repair, roof vent installation, and gutter cleaning, as well as specialized options like tile roofing, flat roofing, and green roofing services. Our team is equipped to handle complex projects from start to finish, ensuring that every detail is meticulously addressed. Our commitment to organization and consistency allows us to deliver durable, high-quality results that provide long-term value for our clients. We understand the importance of thorough project coordination, which enables us to tackle even the most challenging jobs with confidence. Whether you need attic insulation or a complete roof overhaul, our knowledgeable team is here to ensure your insulation needs are met with precision and care.

What people say about “OnTime Insulation Services Inc.”?

Customer feedback for On Time Insulation is overwhelmingly positive. Many reviews highlight the company's professionalism, quick response times, and thorough communication throughout the insulation process. The team is noted for their quality workmanship and attention to detail, with clients appreciating the clean-up efforts after jobs. However, there are some concerns mentioned about specific instances of carelessness during project execution, which slightly tempers the overall sentiment but does not overshadow the majority of positive experiences.

What Users Like The Most

  • They’re highly professional, offer reasonable pricing, and always respond quickly when I need them.
  • Their team is known for quality work, honest communication, and deep knowledge in spray foam and blown-in insulation.
  • They cleaned up afterwards, leaving the attic access room cleaner than it started.
  • Marco was very responsive and is a good communicator.
  • The team completed the work in 2 days, not only did they work quickly but left my the work area completed clean.

What Users Like The Least

Customers are fully satisfied

Recommended Reviews

Overall Company Rating
Excellent 5.0
Out of 66 reviews
5 stars
4 stars
3 stars
2 stars
1 stars
Show first:
Wagner Lucena
Aug 5, 2025

I’ve worked with OnTime Insulation on several projects, and they’ve consistently done an excellent job. They’re highly professional, offer reasonable pricing, and always respond quickly when I need them. I highly recommend them — great team to work with!

Thiago Ramos
Jul 31, 2025

On Time Insulation is one of the most reliable insulation companies in Massachusetts. Their team is known for quality work, honest communication, and deep knowledge in spray foam and blown-in insulation. If you're looking for an insulation contractor that values education, clean installation, and long-term results, this is the company to trust. A great option for homeowners upgrading attics, basements, or removing old insulation.

Scott Maxwell
Jul 30, 2025

The insulation itself was done fairly well. There were some areas of the attic, including the windows, where they did not adequately protect the glass from the spray. This resulted in the foam insulation hardening on the glass and I had to use a paint scraper to remove the spray (while trying not to scratch the glass).

The real problem occurred when they painted over the insulation, but removed the paint tarps minutes after painting, before the paint had days to dry. This resulted in huge amounts of paint dripping on to our hardwood floors.

When I discovered the dripping, I immediately contacted the owner, Marco. After a few minutes of debate, he agreed to come out and look at the damage in person. When he arrived, Marco said he was surprised that the painter had removed the tarps and agreed that they should have been left in place until the paint had time to dry. By this point I had already started trying to mop up the paint myself to minimize the damage to our hardwood floors.

Marco and I spent the next three hours hand scrubbing the floors to remove the wet paint. Ultimately, we are able to get most of the wet paint off the surface, but not before some of it had already stained the hardwood. It actually ended up taking about a week before the paint was dry enough to touch and we had to leave newspapers and blankets across all of the floors to catch the remaining drips over the next few days.

I end up having to pay a flooring specialist to sand and re-stain the hardwood floors. This added another $1500 in unexpected costs to the project.

I would give this business a 4 out of 5 for the insulation, deducting points because they sprayed the glass window with foam insulation. I would give them a zero 0 of 5 for the painting of the insulation.

Katherine Cissell
May 20, 2025

The guys from On Time Insulation did a great job removing the old blown-in cellulose insulation and random fiberglass batts from our attic in prep for new insulation. They were thoughtful and took the time to put down plastic, protecting the house from dust. They cleaned up afterwards, leaving the attic access room cleaner than it started. So thankful that I used them.

Myra Lazu
May 15, 2025

Stellar work from the start with the estimate and options: Marcos provided the best options and worked within my budget. Then came the crew who worked for 2 days, did a fantastic job, and cleaned up. I have had problems with contractors doing poor work and/or running with my money. You can trust OnTime insulation for a job well done.

Miriam Poitras
May 9, 2025

We had such great work done from on time insulation, inc. We didn’t think we could get it done this year because the other two estimates we got was so costly, but when we got an estimate from On-Time Insulation, Inc. It saved us so much money that we had the work done with-in a month.

Chip A
Apr 25, 2025

We contracted with On Time to have our blown-in cellulose insulation removed so we could install flooring in our attic. Marco did the initial visit and was very informative and gave several options and ideas for our attic in general (for the job, and for the future). The team that did the work was Nathan and Jack (spelling?) and they were great. Both were professional, respectful, and personable. I was expecting them to vacuum 80-90% of the cellulose off of the fiberglass below it, and it ended up being closer to 97-98%, including some difficult to reach areas. They had me do a quick check before they packed up, which I appreciated. I would definitely work with these guys again. The only feedback I have is that it was tough to nail down a date for the work and I had to follow-up a few times, but the job was done within 2 weeks of the estimate, which was totally reasonable.

Lynn Skladzien
Mar 11, 2025

We recently contracted On Time Insulation for insulating services in our new addition - the owner Marco was extremely professional, polite and courteous, walking my husband thru what to expect during the process of the job - the crew that came was very thorough, respectful of our property, and took the time to be sure there was complete coverage, of the high density spray foam insulation throughout the new addition - all in all we were extremely happy with the service, and final product - we highly recommend On Time Insulation Services, for all of your insulation needs

Donal montero
Feb 26, 2025

My experience with Marco and his team was amazing they are very professional doing their work thanks Marco again for the amazing job what you did for me god bless you .

Michael Griffin
Feb 22, 2025

Our experience was great, they really went above and beyond. Very competitive pricing with a lot of added value from the other contractors. They managed everything with the project, and left our space cleaner than before they started. They provided innovative solutions to our insulation needs.

Janice S. Muradali
Feb 13, 2025

Marco’s team was truly top notch! It’s so difficult to hire someone based on a Google search but I’m so happy it worked out so well. From the moment Marco shared his capabilities I felt confident to hire his team. For a reasonable extra fee they did a great job patching the holes. They cleaned up afterwards and the guys even mopped the floor. Ultimately the condo is warmer and the goal achieved!

Jesse Beauregard
Jan 29, 2025

I reached out to a couple places for closed cell insulation to replace some existing fiberglass and go over some concrete walls in my basement and it was clear that this company was the ones to go with. Marco, the owner, was punctual, thoughtful and thorough with his quote. He worked with me on my vision for the project all the way through. When it came time to booking him, that was also easy. His team was polite and professional and the insulation application was extremely neat and tidy. In places where the foam would be visible we asked them to make it as wall-like as possible and they did exactly that. They left nothing behind and everything was organized and efficient. Highly recommend.

JAMES BURTON
Jan 6, 2025

Very pleased, spray foamed my unheated basement in Hopkinton. The temperature in the basement went up 10 degrees a day later, without any heat. It will help keep out pest and nowhere for mice to hide. Price was very affordable. A great option if you wish to finish a basement area.

Steve Munier
Dec 24, 2024

Marco and his Team did excellent work. They provided me with many options, great advice, and were very patient with me. Marco was very responsive and is a good communicator. They provided insulation removal service and spray foam installation. I highly recommend On Time Insulation for your needs.

JP Vignone
Dec 18, 2024

Marco and his team were extremely responsive from the first time I contacted them for an estimate to the completion of the job. On Time’s employees were very respectful, neat and hardworking. I will absolutely use them for any insulation projects moving forward and would highly recommend them to anyone!

Bennett Peterson
Dec 17, 2024

Marco did a great job on our basement insulation project. He was knowledgeable and quoted a very reasonable price. He went above and beyond to get the project done on our timeline. I would recommend him for any insulation project.

A T
Oct 17, 2024

Marco and his crew did a fantastic job spraying my basement. We needed to have it done a certain way and it came out perfect.

Luis Molina
Sep 11, 2024

Marco and team were excellent to work with. From the beginning they were quick to respond to my inquiry and the next day came by for a quote. He was in contact with me updating me as I waited to get on their schedule. The team completed the work in 2 days, not only did they work quickly but left my the work area completed clean. I would recommend On Time Insulation to any friend or relative!

Matheus Barros
Sep 10, 2024

Marco & his team did an amazing job removing the existing stone wool insulation and installing hybrid open/closed cell spray foam insulation in our home's attic.
There was a long wait time for booking the installation due to the summer heat, but once they came the installation process was quick and done meticulously, and the area now feels like a totally different space. Highly recommended!

Jake Allen
Sep 6, 2024

Marco did an excellent job with the spray foam insulation in my basement. The insulation looks great and has noticeably improved the temperature control. Highly recommend!

Robert Giron
Aug 16, 2024

On to phase 3 of insulating my home with On Time Insulation. Phase 3 involved removing Sheetrock and exterior wall of kitchen. On Time insulation came in one day to spray the interior and exterior walls.

The technicians were efficient and prepped the house from overspray. My concerns have always been odor and off gas. With On Time insulation, neither were an issue.

Now our house is fully insulated and I cannot begin to tell you how our quality of life in the house has improved. Our utility bills have come down significantly and we are able to be in our home comfortably. On Time insulation are responsible and never try to oversell. The value in this investment was twofold, both financially and in quality of life.

Frank Loulourgas
Apr 21, 2024

I've used OnTime insulation a couple of times at my house. Both times I was very satisfied with the work performed amd the end results. Marco gave me very good advice on where and how to insulate, did a very meticulous job, and left me with a very clean environment when he was done. Price was very reasonable and scheduling was simple. I would highly recommend.

Alex Piotrowski
Apr 7, 2024

I hired them 3 times now, for new addition and for remodeling. Will hire again. High quality work, strongly recommend!

James Henry
Mar 6, 2024

Highly recommend Marco and his team at OnTime Insulation. They were very knowledgeable about best practices, energy code requirements, and did an excellent job insulating our house.

Michael Garcia
Jan 16, 2024

On Time Insulation performed just what the name says. Marco promptly responded to calls and texts, he came “ on time “ , did the work as we discussed and some details we didn’t , and he gave me a good price which was the same price I paid in the end. On Time Insulation is excellent to do business with.

Andreia Miranda
Jan 10, 2024

I recommend Ontime for 2 reasons:
1- They return my call promptly
2- Marco and his crew did an amazing job in my house!
Thanks Marco!

Janet D
Oct 18, 2023

I was very satisfied with the quality of work by the On Time crew. Marco patiently answered all my questions as I navigate through updating home improvement projects, with new insulation being the basis for a more energy efficient house. I wouldn't hesitate to recommend On Time Insulation Services Inc.
You'll be very satisfied with both product and company.

Adria Cleary
Sep 14, 2023

If there were more stars to give, I'd give a solid 10!! Marco and his team didn't shy away from the disaster that occurred in my home recently. The team was so responsive and quickly got to work cleaning up what was a complete mess! Highly recommend OnTime Insulation to assist with your insulation needs whether it's to install or clean up someone else's mistake! Some before and after photo's for context :)

Tom D
Aug 23, 2023

Marcos did such a nice job with the insulation of the new home we built. In the house now and it’s sealed tight. Even the town inspector stated he had never seen the level of insulation detail. It’s nice and cool this summer. Thank you!

Colleen Feerick
Aug 11, 2023

Marco’s crew came today and did an excellent job!
I would highly recommend OnTime Insulation for all your insulation needs.

Anthony Woods
Apr 30, 2023

Told me straight up that what I was considering was not the right move and I should stick with what I have. Could have up sold me, but they were honest and direct and I appreciate that. Highly recommend

Kelly Walsh
Mar 11, 2023

We hired On time Insulation to remove blown-in insulation from our attic. Marcos was incredibly friendly, professional and easy to work with! He was quick to come out and give a quote and schedule the work. His crew was also really kind and worked efficiently and clean. They did a fantastic job removing the insulation despite our attic being tough to work in. I highly recommend On-time and will definitely use them in the future.

nicholas valente
Feb 24, 2023

Marco and his team were absolutely fantastic. True to their name he arrived right on time. Marco was extremely knowledgeable and very thorough on our initial walkthrough of the project. He had an incredibly fast turn around on his quote and it was also fairly priced for the quality. On install/spray day the Ontime crew showed up 15 mins early and delivered on their promise of quality. One of the easier sub contractors I have had the pleasure to work with. I look forward to using them in the future

Rob Aberg
Feb 5, 2023

Just in time for the big freeze in 2023, the team came out and carefully taped plastic sheet on the floors, then sprayed insulation into the 3 sections of the cape-style attic and under the front foyer. They worked hard all day, used a venting system, cleaned up everything, and put back the siding removed for access under the foyer - a complete job. Marco explained his recommendations clearly as well as the installation process - no surprises. The new insulation is keeping this old house nice and warm ... and noticeably less drafty!

Michael Lembo
Dec 18, 2022

Great service!! I needed spray foam insulation last minute and they helped me out! Came out next day and did a great job.

Jenny Ahlin
Nov 7, 2022

We had a great experience! Marco was very informative and knowledgeable to guide us into which insulation type was right for our space/needs. Getting the work done was a breeze. Very professional and polite workers that took care of our space to keep the mess at bay while also doing such an efficient job. We are so happy with the work done and would absolutely recommend to others.

Heather Ward
Oct 17, 2022

OnTime came and insulated our entire house with a combo of open cell and closed cell spray foam. They were “on time”, professional and efficient. I would highly recommend.

Daniel Doe
Oct 17, 2022

Called and scheduled a consultation. Response was quick. Scheduled the installation. All work was done timely and worked with my schedule. Great company and great work.

Meghan Jones
Apr 27, 2022

We used On time Insulation to fully spray foam our horse barn while renovating. Marco showed up promptly for the initial estimate appointment, provided us with multiple options to fit our budget, and had the breakdown ready in a week. Full install and clean up was a little over two and a half days worth of work, and we couldn't be happier! Great work, excellent communication and follow through. Already recommended their services to our neighbors!

Desiree Aselbekian
Mar 25, 2022

Professional, communicative, and on time! Highly recommend Marco and his crew.

The scope of work included closed cell foam spray in my attic and in my basement. I was very concerned about odor from the foam because I’m quite sensitive to smells, but when I walked into my home there was minimal odor. My attic has windows and basement a door, so they offered good ventilation. Marco assured me the smell would be minimal, and he wasn’t lying.

Marco communicated via phone and text every step of the way from consultation to scheduling, and through completion of the project. He is knowledgeable, professional, and courteous.

The crew who performed the work went above and beyond. They prepped the basement with care draping everything I had moved away from the walls, pulled up all of the rugs they would be walking over throughout the home, and cleaned up very nicely. You don’t always get contractors who do that, so they stand out.

All and all, I’m adding my experience to the 5 star rating. Very pleased.

ludwik bartkiewicz
Feb 19, 2022

Extremely professional, one of the best experiences I’ve had with a paid service. The workers were friendly knowledgeable and efficient. They showed up when they said they were going to show up and they completed the job before they left. Very happy with the service.

Silvio Silva
Feb 8, 2022

I highly recommend On time Insulation for weatherization and am sure anything they tackle will be done with equal care, quality and efficiency.

Sebastian K
Jan 16, 2022

Very professional guys, job well done. Immediate improvement on heating a single family home. Difference is day and night compared to bare attic

Laura Bessette
Nov 23, 2021

With winter fast approaching we were anxious to get our attic insulated ASAP. Marco's team worked on Sunday to fit us in. Unlike the company who did my daughters house and underfilled her bays with closed cell, Marco gave us thicker than contracted layers, thoroughly protected floors/outlets etc and cleaned up afterwards. Totally professional job!

Joseph Dougherty
Oct 4, 2021

I’m happy with my experience working with Marco to have spray foam insulation applied to a framed room in my house. Marco and his associate Francer were polite and professional and left the room in a clean and orderly condition. I’m happy to recommend Marco.

Saman Amarasinghe
Aug 25, 2021

My experience with OnTime is one of the best I have had with a trade contractor. I built my house 12 years ago. Then I did closed form insulation outer parameter of the livable space, but no insulation for the attic roof (big mistake). So I decided to remedy that and got quotes from 4 insulation providers. My attic is complicated with dormers, overhangs, and partial cathedral ceilings. Marco did a thorough inspection and found areas that require insulation that others did not notice. He also had the lowest quote. (Get multiple quotes as one quote was 2x more than Maroc's using exactly the same method/materials!) Once I gave him the job, he kept me updated on when he will come to do the job. When they arrived, they took time to secure the place and explain to me exactly what they would do and what we should and should not be doing while they are working (as spay form emits toxic gas). They worked quickly. I was really happy with their workmanship. I will recommend Marco and his team to anyone.

Cintia Parada
Jun 23, 2021

Very professional work with the best insulation, I am looking forward for my energy savings. On Time Insulation provided great quality work and costume care services .

L F
Jun 16, 2021

Marco and his coworker was reliable dependable reasonable and will refer him and use him again if more.needs to be done!

Stephanie Adams
Apr 9, 2021

I can't say enough about OnTime Insulation! (Note -I don't normally write reviews)
The end results have far exceeded my expectations. Neat, thorough, and highly skilled professionals; Marco and crew are professional, communicate job timing and cost as well as manage expectations effectively and realistically. They are all around kind and courteous, not to mention extremely good at what they do! Hire them and you can't go wrong.

Jeff Gagner
Mar 20, 2021

Marco did a great job and paid attention to the details. The result was a job done well that was ready for the next step.

Diogo Nascimento
Mar 9, 2021

Very professional showed up on time and when they said they would definitely will be using for future projects and once job was done they were very clean!!

Adam Motyl-Szary
Feb 3, 2021

Marco and crew were great, the work was not just quality, but Marco took the time to explain things and answers my questions ahead of time. I will happily hire them again.

Keith Rowe
Jan 23, 2021

The guys did exactly what they said they would do when they said they would do it. Our home is now warmer and overall you get a lot of bang for the buck.

Sendy Marrero Lopez
Sep 14, 2020

Marco and his team were a pleasure to work with. I needed to insulate my attic in order to turn it into additional storage space. Marco quoted the job a day after I contacted him and was onsite a week after I approved the work. Will definitely contact him again should I need additional insulation work.

Paul Flynn
Aug 8, 2020

Marco and team were very responsive and professional, and competitively priced. They made sure to take the time needed to do the job right, even though that resulted in things taking a bit longer than originally planned. We had no issue passing inspection and are confident we can count on him if any issues arise as the rest of our renovation project progresses. I recommend On Time Insulation without reservation.
Thanks, Marco!

Jeff Strom
Jul 24, 2020

One Time insulation installed installation in an apartment we are renovating and we were thrilled with their service. Marco and his crew were really easy to work with, performed the services on schedule and did an excellent job. I also found their pricing to be fair - they actually went beyond the original scope of work without increasing the invoice.

Can not recommend them highly enough!

Jean Muto
Apr 30, 2020

On Time Insulation was an absolute pleasure to work with! Marco was extremely friendly and went above and beyond to make sure the work was done properly and in a timely fashion. I would highly recommend On Time Insulation!

Rick Klemmer
Nov 19, 2019

The job was a difficult one in a hard to access area (1853 home needed insulation in tight attic area). We agreed that foam was the right solution. Marco did the job meticulously and cleaned up after making it look like no one was there that day. Thank you Marco, the upstairs of our home is noticeably more comfortable. I highly recommend On Time Insulation Services.

Jay Tavares (D4 Landscaping)
Sep 3, 2019

The name says everything, they are always on time with any size project. Smart guys and very reliable with their promises.

Samrat KC
Jul 2, 2019

We just hired Marco to insulate our crawl space. He did a fantastic job! His price was reasonable compared to other contractors and was a true professional. He also helped us take out the old insulation and we really appreciate it. We are really glad we hired him. We highly recommend Marco and Ontime Insulation Service team. Keep up the good work, Marco!

Hannah Quan Krupp
Jun 25, 2019

Great service! We used them for a three family in Allston. On time and reasonable quote. Very thorough and cleaned well after insulation. Thank you Marco!

Nikki Mincheva
Jun 12, 2019

It was great working with Marco and his crew. We needed our house spray foam insulated in a short time frame. Marco worked with us and managed to complete the entire home plus the attic in a couple of day tireless work with his crew. He is also very reasonably priced and fair. We were impressed and grateful to work with him. I will definitely recommend working with him.

Laura Calderwood
May 25, 2019

Marco and his crew were awesome. Very professional and timely and did a great job cleaning up. I have a very old house with lots of problems and they did a great job accommodating some issues that came up and kept me apprised of how things were progressing. I would highly recommend this company.

Keith Henry
May 21, 2019

OnTime Insulation Services was very pleasant to work with. Between receiving the quote and having the work done, there was a constant line of communication which was great. Marco fit my job into the schedule sooner than I had expected and was in and out in a day. I would use them again and Highly recommend them to anyone needing insulation services.

Douglas Taylor
Apr 18, 2019

Very impressive!

We have an older home and I needed to supplement the attic insulation. I called OnTime looking for some general information. Marco was at the house several hours later providing a very reasonable quote that included insulating the sill, something that I didn't even realize would make a difference.

He answered all my questions about open cell foam insulation and put me at ease that it was the right product for my needs. The job was scheduled. They were on time, worried about protecting the house and minimizing the need for cleanup.

The quality of the work is top shelf, they care about doing it right. I highly recommend On Time, they did great work for me.

Denise Ramos
Feb 26, 2019

On Time Insulation did a great job!
Quality, responsive, competitive prices, highly recommend. Would hire again!
Thank you On Time Insulation!

Call us and get a quote right now Show phone number
137 locals recently requested a quote
  • 48 Morton St, Holliston, MA 01746
  • Commercial Roofing
  • Industrial Roofing
  • Residential Roofing
  • Free Estimates
  • Licensed & Insured
Hours
Mon7:30 AM - 9:00 PM
Tue7:30 AM - 9:00 PM
Wed7:30 AM - 9:00 PM
Thu7:30 AM - 9:00 PM
Fri7:30 AM - 9:00 PM
Sat7:30 AM - 9:00 PM
Sun7:30 AM - 9:00 PM

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